White tea consumption slightly reduces iron absorption but not growth,food efficiency,protein utilization,or calcium,phosphorus, magnesium,and zinc absorption in rats |
| |
Authors: | Francisca Pérez-Llamas Daniel González Lorena Cabrera Cristobal Espinosa Jose A López Elvira Larqué M Pilar Almajano Salvador Zamora |
| |
Institution: | (1) Department of Physiology, University of Murcia, 30100 Murcia, Spain;(2) Department of Chemical Engineering, The Technical University of Catalonia, 03034 Barcelona, Spain |
| |
Abstract: | We investigated the antinutritional effect of white tea extract (0, 15, and 45 mg of the tea solid extract per kilogram body
weight) incorporated in the drinking water of rats for 3 and 30 days. Gender-based differences were found for all these variables,
except apparent protein digestibility and the apparent absorption of calcium, phosphorus, and iron. White tea extract consumption
did not significantly change body weight gain, food intake, food efficiency, protein efficiency ratio, apparent protein digestibility,
nitrogen balance, or the apparent absorption of calcium, phosphorus, magnesium, and zinc. Nevertheless, the apparent absorption
of iron was slightly (15–18%) but significantly (P < 0.05) lower in rats that consumed white tea at the highest dose compared with the control groups at both 3 and 30 days.
Our results suggest that the usual consumption of white tea is safe, although its effect on long-term iron absorption at high
doses warrants more detailed investigation. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|